This article summarize the history of intellectual properties and its problem. I agree to limit the use of patent as offensive legal weapon to stop competitors and return the copyright period back to 14 years.最近香港某大學進行有關消費者購買盜版光碟的調查，顯示在購盜版貨者中有四成具大專學歷。負責調查的那位教授驚呼這種「只講價錢不講道德」的風氣要不得。…